Is there a simple way to get image width/height in twig?

I had a situation in my current project where I wanted to add img's to my gallery template differently depending on whether they were portrait or landscape. But there are no built-in actions to determine the width and height of an image file. The width() and height() actions are only to set the width or height.

What I have done for now is to edit the ImageMedium.php file (/system/src/Grav/Common/Page/Medium/ImageMedium.php) by adding these two methods:
---php
public function getWidth()
{
if (!$this->image) {
$this->image();
}
return $this->image->getAdapter()->width();
}

public function getHeight()
{
    if (!$this->image) {
        $this->image();
    }
    return $this->image->getAdapter()->height();
}

Now I can call them from twig like this:

{% if page.media[painting.file].getHeight() > page.media[painting.file].getWidth() %}
{% set portrait = true %}
{% else %}
{% set portrait = false %}
{% endif %}

This is just fine and dandy, except I have to update that file every time grav updates.  Is there a simpler, or at least update-proof way of doing this?  Thanks.

Hmm.. i thought that this was already in ImageMedium.php, but the height() and width() functions in there are actually allowing you to get and set the image height and width attributes, not actually retrieving the physical height and width.

Please create an issue here: https://github.com/getgrav/grav/issues about this and i'll get a couple of functions added to get the physical image sizes.

Thank you!

OK, this was just resolved on github by w00fz. Apparently 'height' and 'width' can be used as properties, in addition to as functions, and will thusly give the actual height and width. Like:

{% set imgHeight = page.media[painting.file].height %}

I don't think that's in the documentation, but I could just have missed it.